Heat sink



FIG. 1 is a perspective view showing a heat sink embodying my newdesign;

FIG. 2 is a top plan view thereof;

FIG. 3 is an elevational view of both sides thereof;

FIG. 4 is an elevational view of both ends thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a perspective view of a heat sink showing a second embodimentof my new design;

FIG. 7 is a top plan view thereof;

FIG. 8 is an elevational view of both sides thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a perspective view of a heat sink showing a third embodimentof my new design;

FIG. 11 is a top plan view thereof;

FIG. 12 is an elevational view of both sides thereof;

FIG. 13 is a bottom plan view thereof;

FIG. 14 is a perspective view of a heat sink showing a fourth embodimentof my new design;

FIG. 15 is a top plan view thereof;

FIG. 16 is an elevational view of both sides thereof;

FIG. 17 is a bottom plan view thereof; and,

FIG. 18 is a bottom perspective view of the FIGS. 1-5 embodiment.

The end views of the second, third, and fourth embodiments are identicalto that of the first embodiment. The bottom perspective view of thesecond, third, and fourth embodiments are generally the same as thefirst embodiment except for length.

The ornamental design for a heat sink, as shown and described.